Ira Rennert is the billionaire founder of Renco Group1, who is best known for the palatial property he had built in the Hamptons, New York. It is the largest privately owned house in America It is purportedly the largest privately owned and occupied house in America, and is estimated to be the world’s most expensive home. The beach-front complex is known as Fairfield, and it nestles in a mere 255,000 m² of land (63 acres). The buildings themselves have over 10,000 m² of floor-space, and contain 29 bedrooms, 39 bathrooms, a 28 m long dining room, a bowling…